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Title / Demonstrate knowledge of cables and specialist substation equipment
Level / 4 / Credits / 7
Purpose / People credited with this unit standard are able to demonstrate knowledge of: specialist substation equipment; the operating principles for specialist substation equipment; cables used in substations; and condition assessment for specialist substation equipment.
Classification / Electricity Supply > Electricity Supply - Power System Maintenance
Available grade / Achieved
Explanatory notes
1This unit standard is intended for assessment off-job. The range statements and evidence requirements across the unit standard can be applied according to industry specific equipment, procedures, and processes as applied in the electricity supply industry.
2Performance and work practices in relation to the outcomes and evidence requirements must comply with all current legislation, especially the Electricity Act 1992 and any subsequent amendments, and any regulations, codes of practice recognised under that statute, Health and Safety in Employment Act 1992, the Resource Management Act 1991, and their subsequent amendments, electricity supply industry codes of practice and documented enterprise procedures. These include the latest version ofSafety Manual – Electricity Industry (SM-EI) Wellington: Electricity Engineers’ Association.
A full list of current legislation and industry codes is available from:
Infrastructure Industry Training Organisation
PO Box 1245
Hamilton 3240.
3The phrase in accordance with industry requirements is implicit in all outcomes and evidence requirements in this unit standard.
4Definitions
Asset owner refers to the owner of an electricity supply network that takes its point of supply from Transpower NZ, and delivers electricity to industrial, commercial and residential customers.
Industryrequirementsinclude all asset owner requirements; manufacturers’ specifications; and enterprise requirements which cover the documented workplace policies, procedures, specifications, business, and quality management requirements relevant to the workplace in which assessment is carried out.
5HV is defined as high voltage, LV is defined as low voltage, ELV is defined as extra low voltage.
Outcomes and evidence requirements
Outcome 1
Demonstrate knowledge of specialist substation equipment.
Evidence requirements
1.1Commonly used specialist substation equipment is identified.
Rangemay include but is not limited to: Surge arrestors, oil, air and water
services, battery supplies, capacitors, reactors, earthing transformers, neutral transformers, neutral earthing resistors, harmonic filters, line traps, surge arrestors.
Evidence of five specialist equipment is required.
1.2 Function of specialist substation equipment is described.
Rangemay include but is not limited to: Surge arrestors, oil, air and waterservices, battery supplies, capacitors, reactors, earthing transformers, neutral transformers, neutral earthing resistors, harmonic filters, line traps.
Evidence of the function of five specialist equipment is required.
1.3Location of specialist substation equipment is explained.
Rangemay include but is not limited to: Surge arrestors, oil, air and waterservices, battery supplies, capacitors, reactors, earthing transformers, neutral transformers, neutral earthing resistors, harmonic filters, line traps.
Evidence of the location of five specialist equipment is required
Outcome 2
Demonstrate knowledge of the operatingprinciples forspecialist substation equipment.
Evidence requirements
2.1 Operatingprinciplesfor specialist substation equipment areexplained.
Rangemay include but is not limited to: Surge arrestors, oil, air and waterservices, battery supplies, capacitors, reactors, earthing transformers, neutral transformers, neutral earthing resistors, harmonic filters, line traps.
Evidence of five specialist equipment is required.
Outcome 3
Demonstrate knowledge of cables used in substations.
Evidence requirements
3.1Cable types commonly used to connect substation equipment aredescribed.
Rangeincludes but is not limited to: HV, LV, ELV, control cables, fibre cables, communication cables.
Outcome 4
Demonstrate knowledge of condition coding assessment for specialist substationequipment.
Evidence requirements
4.1 Condition coding assessment for specialist substation equipmentis described.
Planned review date / 31 December 2020Status information and last date for assessment for superseded versions
Process / Version / Date / Last Date for AssessmentRegistration / 1 / 17 March 2016 / N/A
Consent and Moderation Requirements (CMR) reference / 0120
This CMR can be accessed at
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA, before they can report credits from assessment against unit standards or deliver courses of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by NZQA before they can register credits from assessment against unit standards.
Providers and Industry Training Organisations, which have been granted consent and which are assessing against unit standards must engage with the moderation system that applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies to this standard are outlined in the Consent and Moderation Requirements (CMR). The CMR also includes useful information about special requirements for organisations wishing to develop education and training programmes, such as minimum qualifications for tutors and assessors, and special resource requirements.
Comments on this unit standard
Please contact the Infrastructure Industry Training Organisation at if you wish to suggest changes to the content of this unit standard.
Infrastructure ITOSSB Code 101813 / New Zealand Qualifications Authority 2018